In article ,
Andy Dingley wrote:
...snipped...

No, the situation is exactly the same. It's a question of max possible
discharge energy vs. minimum energy needed to initiate a dust explosion.
These don't change for industrial scale wood dust collectors - the
volumes get bigger, the densities don't.


Can you support that statement? At any rate, in an industrial
setting the greater volume of air and dust being moved would have
the potential to create a more powerful static discharge.

And all the comparison to grain silos; The dust that creates the
danger of an explosion in them is MUCH finer than the sawdust created
in the typical wood shop operation, except perhaps for sanding dust.


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Larry Wasserman Baltimore, Maryland